Steven Nastasio, RN
NPI 1407789654 · Critical Care Medicine Registered Nurse · Mesa, AZ
Steven Nastasio, RN is a Critical Care Medicine Registered Nurse provider in Mesa, AZ (NPI 1407789654).
Provider details
- NPI number
- 1407789654
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 220711 (AZ)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2026-06-06
- Last updated
- 2026-06-06
- Certified
- 2026-06-06
Frequently asked questions
- What is Steven Nastasio's NPI number?
- Steven Nastasio's National Provider Identifier (NPI) is 1407789654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Nastasio's specialty?
- Steven Nastasio is listed in the NPPES registry with a primary specialty of Critical Care Medicine Registered Nurse (Nursing Service Providers).
- Where is Steven Nastasio located?
- Steven Nastasio's practice location on file with NPPES is 1400 S Dobson Rd, Mesa, AZ 85202-4707.
- What is Steven Nastasio's phone number?
- The practice phone number listed in the NPPES registry for Steven Nastasio is (480) 412-3350.
- Is Steven Nastasio's NPI active?
- Yes — Steven Nastasio's NPI (1407789654) is active in the NPPES registry as of the last update on 2026-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.